Cisco Session Initiation Protocol Software up to 3.2(1) SSH information disclosure

Summaryinfo

A vulnerability categorized as problematic has been discovered in Cisco Session Initiation Protocol Software up to 3.2(1). Impacted is an unknown function of the component SSH Handler. Executing a manipulation can lead to information disclosure. This vulnerability is registered as CVE-2025-20158. The attack needs to be launched locally. No exploit is available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability classified as problematic was found in Cisco Session Initiation Protocol Software up to 3.2(1). This vulnerability affects an unknown functionality of the component SSH Handler. The manipulation with an unknown input leads to a information disclosure vulnerability. The CWE definition for the vulnerability is CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. As an impact it is known to affect confidentiality. CVE summarizes:

A vulnerability in the debug shell of Cisco Video Phone 8875 and Cisco Desk Phone 9800 Series could allow an authenticated, local attacker to access sensitive information on an affected device. To exploit this vulnerability, the attacker must have valid administrative credentials with SSH access on the affected device. SSH access is disabled by default. This vulnerability is due to insufficient validation of user-supplied input by the debug shell of an affected device. An attacker could exploit this vulnerability by sending a crafted SSH client command to the CLI. A successful exploit could allow the attacker to access sensitive information on the underlying operating system.

The advisory is available at sec.cloudapps.cisco.com. This vulnerability was named CVE-2025-20158 since 10/10/2024. The exploitation appears to be easy. Local access is required to approach this attack. The exploitation requires an enhanced level of successful authentication. The technical details are unknown and an exploit is not available. This vulnerability is assigned to T1592 by the MITRE ATT&CK project.

The vulnerability scanner Nessus provides a plugin with the ID 216595 (Cisco Video Phone 8875 and Desk Phone 9800 Series Information Disclosure (cisco-sa-phone-info-disc-YyxsWStK)), which helps to determine the existence of the flaw in a target environment.

Upgrading eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (216595). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Vendor

• Cisco

Name

• Session Initiation Protocol Software

Version

• 2.0(1)
• 2.1(1)
• 2.2(1)
• 2.3(1)
• 2.3(1)SR1
• 3.0(1)
• 3.1(1)
• 3.1(1)SR1
• 3.2(1)

License

• commercial

Website

• Vendor: https://www.cisco.com/

CPE 2.3info

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CPE 2.2info

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Entryinfo

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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